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J. L. REED. ASBESTUS FAGBD FELT.

No. 387,368. Patented Aug. 7, 1888.

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UNITED STATES PATENT OFFICE.

JAMES L. REED, OF BROOKLYN, ASSIGNOR OF FIVE'NINTHS TO DE LONG 8t FRENCH, OF NEW YORK, N. Y.

ASBESTUS FACED FELT.

SPECIFICATION forming part of Letters Patent No. 387,368, dated August '7, 1888.

Application filed February 21, IP88. Serial No. 264,748.

To aZZ whom it may concern.-

Be it known that I, JAMES L. REED, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Asbestos Faced Felt, of which the following is a specification.

My invention relates especially to heat nonconducting coverings for steampipes, 850., and has for its object the provision of a covering cheap and simple to make, which will not be affected by the heat of the object wherewith it is used, which shall consist of one fabric or mass that may be cut to accurately fit in place, and which can be very quickly and easily applied.

To attain the desired end, my invention consisls,essentially, in an asbestos faced hair-felt, the said asbestus face being worked into the hair and corrugated, ribbed, or scored so as to freely conform to the object to which it is applied, while at the same time the hair is fully protected from contact with the heated surface, all of which will be hereinafter tirst fully described, and then pointed out in the claims.

In the drawings, Figure 1 is a plan view of a fragment of my improved boiler-covering, and Fig. 2 is a sectional view thereof. Fig. 3 is a sectional view showing it as applied to a pipe.

Like letters of reference, wherever they occur, indicate corresponding parts in all the figures.

A is the hair-felt, made in the usual manner. B is the asbestos face felted into the hair and having corrugations or ribs 0.

In preparing my improved asbestos-faced felt, I take crude fiber asbestus and reduce it (No specimens.)

to a pulp by beating and floating in Water until the fibers are separated and become soft and pliable. I then add about one-fourth in bulk of kaolin or ground talc and beat the mass together for three or four hours until it becomes homogeneous. I then add a sufficient quantity of prepared glue to give strength. adhesiveness, and pliability. The hair-feltis placed upon a suitable table and coated with size. The pulp first above described is then spread evenly upon the feltand rolled,worked, or pressed into the same, forming a part thereof. I then, by the application of pressure, form the corrugations or ridges in the asbestos surface, and, after drying, the completed covering is ready to roll up for shipment and for use.

Having now fully described my invention, what I claim as new therein, and desire to se cure by Letters Patent, is-

1. As a new article of manufacture, boilercovering consisting of hair-felt having a face of asbestus pressed therein and forininga part thereof, substantially as shown and described.

2. Hair-felthaving a. face of asbestos pressed therein, the said asbestus face being corrugated, ribbed, or scored, substantially as shown and described.

3. The combinatiomwith hair-felt, of a fireproof flexible face worked into the felt, and corrugated, ribbed, or scored, substantially as and for the uses and purpose shown and described.

Signed at New York, in the county of New York and State of New York, this 14th day of February, A. D. 1888.

JAMES L. REED.

W'itnesses:

A. M. PIERCE, WM. H. WEIGHTMAN. 

